Connect → LiteLLM
Use AxForge with LiteLLM
LiteLLM is an open-source proxy. Put AxForge behind it to get one endpoint for many models, with budgets, keys and fallback — and to reach AxForge from tools that speak a different API shape.
config.yaml
model_list:
- model_name: axforge-chat
litellm_params:
model: openai/chat # openai/ prefix = OpenAI-compatible upstream
api_base: https://api.axforge.ai/v1 # MUST include /v1
api_key: os.environ/AXFORGE_API_KEY
- model_name: axforge-embed
litellm_params:
model: openai/embeddings
api_base: https://api.axforge.ai/v1
api_key: os.environ/AXFORGE_API_KEY
$ litellm --config config.yaml # proxy on http://localhost:4000
Two easy mistakes. api_base must end in
/v1 (omit it and you get a Not Found), and you should never append
/chat/completions yourself — LiteLLM's OpenAI handler adds the path.
Three surfaces from one upstream
The proxy can re-expose AxForge on all three of the API shapes tools expect:
| Surface | Reaches | Note |
|---|---|---|
| /v1/chat/completions | OpenAI clients | native, no extra config |
| /v1/messages | Anthropic / Claude Code | translated automatically |
| /v1/responses | Codex / Responses clients | add use_chat_completions_api: true |
For the Responses bridge, add that flag to the model's
litellm_params and use LiteLLM ≥ 1.63.8. You don't need this to reach
AxForge from Codex or Claude Code —
both are served natively — but it's handy if you already front everything with a
gateway.
Pin a clean LiteLLM release. Avoid the PyPI builds
1.82.7 / 1.82.8, which were flagged upstream — install a
known-good version.
Check that it worked
Two things, and the second is the one that proves it end to end:
curl http://localhost:4000/v1/modelslists your AxForge model names.- A chat call through the proxy returns an answer with
usage. - The call appears in the console at Billing & usage within a minute or two. Nothing else confirms that your key reached our API — a reply alone could be a cache or another provider.
When it does not work
| What you see | What it means | Fix |
|---|---|---|
| The proxy starts but the model 404s | the model value is missing the openai/ prefix | LiteLLM needs the provider prefix to know the wire protocol |
401 from the proxy | your LiteLLM key | different from your AxForge key — both must be right |
401 from upstream | the AxForge key in api_key | confirm it with the self-test |
Run the self-test first when you are unsure — it says in one click whether the problem is your key, your quota or us, so you know whether the tool is worth debugging at all.